Is animSwitch broken?

[Bluegobln]

I am trying to animate something and I animated backwards, but figured it was no big deal and knew there was a way to start in the 2nd state (end of the animation instead of the beginning) so I continued with the part.

Now I can't get the part to reverse state using animSwitch = True. It does not work.

Before you say something is wrong on my end I have two identical parts sitting in front of me right now that function perfectly, one has animSwitch = True, the other does not, that being the only difference.

What am I doing wrong? I've gone down the pipeline and can't see where things are being borked. Either animSwitch = true is nonfunctional, or something changed in 0.20. :(

Any ideas?

Edit: just realized this might be more appropriate in the plugin development forum, but hey.. *shrug*